Hitachi 9900 Series, 9960 manual Hitachi Data Systems, Warm site, Workload

Hitachi Data Systems

WAN

Wide Area Networks or WANs are networks of computers that are geographically dispersed and connected by radio waves, telephone lines, satellites, or high-speed fibre optic backbones.

Warm site

An alternate-processing site that is only partially equipped (as compared to Hot site which is fully equipped). See also Hot site and Cold site.

Workload

I/O workload refers to the pattern of I/Os presented to the Lightning 9900™ Series system or to a disk drive.

XRC

Extended Remote Copy. IBM’s implementation of a software asynchronous Remote Copy technique that preserves data integrity. See also HXRC and Hitachi TrueCopy.

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